Help in Resetting Codes

[Roadster90]

I figured disconnecting the battery..... but apparently not.....

I had a 034c and replaced the MAF and the code turned to a h. I disconnected the battery to clear the 034 and some other h codes and was sucessful only in clearing the 034. The codes I can not clear are:

b552c

r025h

r026h

r061h

can someone tell me how to clear these please?

[Jim]

'90-91 Reattas---------

There is a much easier way to clear the codes than disconnecting the negative cable and this way you do not lose your radio and clock settings.

Turn on the key and on your ECC ( climate control module ) push the "off" and temperature up ( up arrow ) at the same time and hold them until the car goes into the diagnostic mode. You will see all of the lights on the IPC light up and the trouble codes will then be read out where the mileage usually is.

Write down the codes as they go by. They go by pretty fast so write them down quickly and watch for the next. First you will get the engine codes eg. Exxx, then you will get the body codes eg. Bxxx then some IPC codes eg. Rxxx and maybe an SIR code.

If any code has an "h" after it that means it is a code in history and not current. No "h" means it is a current code.

After all the codes have displayed you will get a Ec? this means do you want to diagnose the engine computer. Pressing the Fan down arrow you will be telling the computer no, the fan up arrow means yes.

If you did get any Ec codes and you want to clear them, when you get the Ec? push yes and then it will ask you questions, keep pushing no until it asks if you want to clear the E codes then push yes.

If you have no E codes and want to go to the B codes when it asks you Ec? push the fan down button for no and it will then ask you Bc, and you can push yes. It will then ask you questions and you continue pushing no until it ask CLR b code and you push the up fan for yes.

You cannot hurt anything or screw up anything by doing this and if you make a mistake simply turn off the key and start over. You can also go back to normal by pressing the "bi-level" button.

88-89 Reattas------

BCM means Body Computer Module and controls the functions of the body.

ECM means Engine Computer Module and controls the functions of the engine.

IPC means Instrument Panel Cluster.

With the key on, engine running or not, go the the climate screen on the

CRT and press and hold the off and warm buttons at the same time.

The service engine soon lamp will light and the ECM codes will be listed

followed by the BCM codes and then the IPC codes.

They go by quite fast so you may want to write them down. Any code with a

"h" after it will be a code that was current, but is not now, and is listed

a "history" code. Any code that does not have an "h" is a current code.

ECM codes will start with a "e" and then 2 digits, BCM with a "b" etc.

After the codes are listed the screen will say ECM? This means do you want

to diagnose the ECM.

If there were "e" codes push "yes" if not, push "no" and the screen will

go to the BCM?

If there are ECM codes after pushing "yes" it will ask several questions.

Keep pushing "no" until the question "ECM code reset" comes up and then

push "yes".

You can go from the ECM to the BCM and then to the IPC and clear any codes.

You can't hurt anything by doing this proceedure and even if you make a

mistake simply push "end" or shut off the key and everything will go back

to normal.

[Jim]

R codes are SIR codes and cannot be cleared from the ECC or disconnecting the battery. They need to be cleared with a scan tool plugged into the ALDL.

Your B 552 is a "BCM keep alive memory error"

Code B 552 does not necessarily indicate a fault but is a normal occurrence anytime the battery power or ground to the BCM has been interrupeted. Code B 552 cannot be cleared from memory in the normal manner. Code B 552 can only be cleared if it is not current. Under normal conditions, the code will become history by the following---

Key in "lock"

Wait 5 seconds

Key "on" re-enter Diagnostics

This code should now be history, and can be cleared in the normal manner.

This code could set if the system voltage drops below 8 volts at the BCM terminal "1C9" Possible causes for this are---

Faulty charging system

Faulty starter system

Extreme cold weather

Jump starting vehicle.

One similiarity I did notice is your SIR codes and this B code are both related to low or no voltage problems.

[Roadster90]

WooooW!!!! That was a real help answer!! Thanks Jim...alot of typing.

Can't mess anything up huh...watch me <img src="http://forums.aaca.org/images/graemlins/frown.gif" alt="" /> <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" /> <img src="http://forums.aaca.org/images/graemlins/smile.gif" alt="" />

Nic